q = append([]AST{qual}, q...)
			st.advance(1)
		} else if len(st.str) > 1 && st.str[0] == 'D' {
			var qual AST
			switch st.str[1] {
			case 'x':
				qual = &Qualifier{Name: "transaction_safe"}
				st.advance(2)
			case 'o':
				qual = &Qualifier{Name: "noexcept"}
				st.advance(2)
			case 'O':
				st.advance(2)
				expr := st.expression()